Description
Hanna HI98303 DiST 3 is a compact, waterproof electrolytic conductivity (EC) tester built for anyone in Oman who needs quick, dependable readings on low-range conductivity samples up to 2000 uS/cm. Whether you are checking drinking water quality, monitoring an irrigation supply, keeping an eye on water conditioning systems, or performing routine environmental checks, the Hanna HI98303 delivers lab-quality accuracy in a pocket-sized housing that is only 0.7 inches thick.
Its rugged, ergonomic shape fits comfortably in one hand, making it a practical tool for both field technicians and home water quality enthusiasts across Muscat and beyond.
Key Features
- Large multi-level LCD that displays EC and temperature readings at the same time, along with stability and calibration tags
- Exposed temperature sensor for fast, automatically compensated conductivity readings
- Simple two-button design: one button for on/off, the other for calibration
- Amperometric graphite electrode that resists oxidation and reduces the polarization effects common with steel-pin sensors
- Automatic one-point calibration recognition once the probe is stable in the calibration solution
- Battery percentage indicator shown at start-up so you always know how much power remains
- Adjustable automatic shut-off timing (8 minutes, 60 minutes, or disabled) to save battery life
Technical Specifications
- EC Range: 0 to 2000 uS/cm
- EC Resolution: 1 uS/cm
- EC Accuracy: plus/minus 2% of full scale
- Calibration: automatic, one-point at 1413 uS/cm
- Temperature Compensation: automatic, from 0 to 50 degrees C (32 to 122 degrees F)
- Temperature Range: 0.0 to 50.0 degrees C / 32.0 to 122.0 degrees F
- Temperature Accuracy: plus/minus 0.5 degrees C / plus/minus 1.0 degrees F
- Battery Type: CR2032 3V lithium, approximately 250 hours of continuous use
- Dimensions: 160 x 40 x 17 mm (6.3 x 1.6 x 0.7 in)
- Weight: 75 g (2.6 oz)
Who Should Buy the Hanna HI98303
The Hanna HI98303 is best suited to buyers who work primarily with lower-conductivity water samples, such as tap water, filtered drinking water, aquarium water, or light irrigation supplies. Homeowners who want to verify that their reverse osmosis or filtration system is performing correctly will find the 0 to 2000 uS/cm range more than sufficient for everyday checks.
Farmers and greenhouse operators monitoring nutrient solutions or irrigation water also benefit from its fast response and stable readings. Because the unit is waterproof and pocket-sized, it travels easily between sites, making it a favorite among field technicians who need a no-fuss, grab-and-go meter.
How to Calibrate and Use the DiST 3
Getting an accurate reading with the Hanna HI98303 is straightforward. Power on the meter with the dedicated on/off button, then dip the exposed probe tip into your sample, making sure the sensor is fully submerged.
The large LCD will show conductivity and temperature simultaneously, with a stability indicator letting you know when the reading has settled. To calibrate, press the calibration button and place the probe into a 1413 uS/cm calibration standard; the meter automatically recognizes the standard and stores the calibration once the reading stabilizes, so there is no need to adjust anything manually. For long-term users, the setup mode, accessed through a small button inside the battery compartment, lets you switch between Celsius and Fahrenheit and choose your preferred auto shut-off interval.
Maintenance and Care
Because the graphite electrode resists oxidation, the HI98303 requires very little day-to-day maintenance. Rinse the probe with clean water after each use, especially when testing samples with sediment, fertilizer, or cleaning residue, to keep the sensor reading accurately over time.
Store the tester in its protective sleeve when not in use to shield the probe from dust and accidental knocks. The CR2032 battery is rated for roughly 250 hours of continuous use, and the on-screen battery indicator gives plenty of warning before a replacement is needed, so you are unlikely to be caught out mid-test.
Frequently Asked Questions
Can the Hanna HI98303 test high-conductivity water like seawater? No, this model is designed for low-range readings up to 2000 uS/cm. For seawater or brine testing you would need a higher-range EC meter.
Is the DiST 3 fully waterproof? Yes, the housing is sealed to resist splashes and accidental submersion, which is why it holds up well in field and outdoor conditions.
How often should I calibrate it? For regular use, calibrating every few weeks with a fresh 1413 uS/cm standard keeps readings accurate; frequent users may prefer to calibrate weekly.
Does it come with a carrying case? Yes, it ships with a storage and protection sleeve along with the CR2032 battery, calibration solution sachets, an instruction manual, and a quality certificate.
Water Filter Oman stocks the Hanna HI98303 DiST 3 as part of our range of precision testing instruments, alongside our filtration and RO systems available in our online shop. For the complete manufacturer specifications and warranty details, you can also review the official Hanna Instruments HI98303 product page.
If you are unsure whether the Hanna HI98303 is the right conductivity meter for your needs, our team is happy to help you choose between the DiST 3 and our other Hanna testers based on the water sources you plan to monitor.
